Description
An issue was discovered in IO FinNet tss-lib before 2.0.0. The parameter ssid for defining a session id is not used through the MPC implementation, which makes replaying and spoofing of messages easier. In particular, the Schnorr proof of knowledge implemented in sch.go does not utilize a session id, context, or random nonce in the generation of the challenge. This could allow a malicious user or an eavesdropper to replay a valid proof sent in the past.
Details
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| github.com/binance-chain/tss-lib | — | — |
| github.com/bnb-chain/tss-lib | — | — |
| tss-lib | — | 2.0.0 |
References
Similar Threats
- Critical CVE-2023-26556
- High CVE-2023-26557
- Critical CVE-2022-47931
- High CVE-2020-12118
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